Coast live oaks killed by the sudden oak death
pathogen (Phytophthora ramorum).
Trees infected by sudden oak death
are clearly the losers, and that makes them easy to spot.
A quarantine aimed at stopping the interstate shipment of nearly 60 different plant species with the potential to host the sudden oak death
(SOD) pathogen has been imposed by the Animal Plant Health Inspection Service of the USDA (APHIS).
The emerald ash borer is only one of the many threats to the nation's forests, which are also being attacked by the Asian longhorn beetle, gypsy moth, beech scale insect, hemlock wooley adelgid and sudden oak death
Changes in climate and farming practice along with increased trade and travel have been blamed for the rise, but one of the biggest factors is the arrival in this country of the Sudden Oak Death
(Phytophthora ramorum) fungus which has been found on rhododendron and viburnum at 280 garden centres.
Sudden Oak Death
and Associated Diseases Caused by Phytophthora ramorum.
This is an organism that has the potential to impact entire plant communities," says Matteo Garbelotto, a plant pathologist at the University of California, Berkeley and a key researcher on sudden oak death
Sudden oak death
is caused by Phytophthora ramorum, a new strain of fungus from the genus Phytophthora, whose family has in the past been linked to the 19th century Irish potato famine, and to the dieback of cedar trees in the US, eucalyptus trees in Australia, and oak trees in Europe.
Discovered in 1995, Phytophthora ramorum has been attributed to the death of several types of oak trees in Northern California and Southern Oregon; it is also commonly referred to as Sudden Oak Death
Contract awarded for award summary trade services sudden oak death
eradication - project
Thousands of acres of woodlands across Wales have been infected by Phytophthora ramorum (P ramorum), which kills larch and is known as Sudden Oak Death
, with much of the land in public ownership.
For example, when the pathogen that causes sudden oak death
was detected in Marin County in 1995, UC Cooperative Extension joined forces with USDA Forest Service and CAL FIRE to try to understand what was causing the unexplained tree death.